2 892 787 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁷⁰

TF target 2⁶³

TF below 2^71 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	2602995
B2 =	5468192730

ECM

Digits	B1	Curves
25	50000	154 / 280

Estimated T-Level: 22.8 ⓘ

Status	Date	User	Residue	Shift
Verified		Eryk Hargrove	E57907DCBE170267	0
Verified	1999-05-02	Jürgen Devlieghere	E57907DCBE170267	2724262
Verified	2018-09-28	kkmrkkblmbrbk	E57907DCBE170267	1705138

History

Date	User	Type	Result
2023-10-29	Joss	NF-PM1	B1=2602995, B2=5468192730
2023-10-05	Joss	NF-PM1	B1=2602995, B2=3026573550
2023-09-14	Joss	NF-PM1	B1=1000000, B2=4838463630
2023-05-26	TJAOI	NF	no factor from 2^69 to 2^70
2023-05-25	Joss	NF-PM1	B1=1000000, B2=2396844450
2021-04-29	TJAOI	NF	no factor from 2^68 to 2^69
2020-02-11	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-10-23	masser	NF-PM1	B1=2900000, B2=29000000, e=12
2019-01-12	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-28	kkmrkkblmbrbk	C-LL	E57907DCBE170267
2017-11-16	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-10-21	Joss	NF-PM1	B1=597196, B2=5971960, E=6
2017-02-25	Joss	NF-PM1	B1=298598, B2=2985980, E=6
2016-12-14	Joss	NF-PM1	B1=248832
2016-10-27	Joss	NF-PM1	B1=172800
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-11-28	omylist	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-01-14	markr	NF	no factor from 2^61 to 2^62
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61

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